In the second instalment of a five-part series, we contemplate the extent of our significance in the universe.(Read part 1.)
We’ve been looking at Psalm 8, and we’ve discovered that stargazing helps us to see how insignificant we really are.
Just think about the size of space for a moment. Imagine you could get into the fastest jet on earth (last time I checked, this was the SR-71 Blackbird). Its official speed record is almost 2,500 miles per hour. Now imagine you could speed it up 100 times to 250,000 miles per hour. Then imagine that you could take it on a trip to space. It would take you an hour to get to the moon—that’s pretty reasonable! It would take you eight days to get to Mars, the closest planet to Earth. It would take you four months to get to the planet Saturn (remember, we’re travelling 100 times faster than the fastest jet ever built). It would take you a year and a half to get to the planet Pluto at the edge of our solar system. To get to the closest star to the sun, Proxima Centauri, it would take you 12,000 years. To get to the centre of our own Milky Way galaxy, it would take you 80 million years. To the next closest galaxy, Andromeda, it would take you seven billion years. To get to the edge of the visible universe, it would take you 40 million million years. And they think that the size of the non-visible universe is vastly huger than this: that would take you a million million million million, etc. years.
(more…)